import 'package:flutter/material.dart';
import 'package:flutter_api_study/scroll/ScrollBasePage.dart';

import 'base/BaseWidgetPage.dart';
import 'layout/BaseLayoutPage.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  final List<String> parts=['基础组件','布局组件',"scroll"];

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      //注册路由表
      routes:{
        parts[0]:(context)=>BaseWidgetPage(title:parts[0],),
        parts[1]:(context)=>BaseLayoutPage(),
        parts[2]:(context)=>ScrollBasePage(),
      },
      theme: ThemeData(

        // This is the theme of your application.
        //
        // Try running your application with "flutter run". You'll see the
        // application has a blue toolbar. Then, without quitting the app, try
        // changing the primarySwatch below to Colors.green and then invoke
        // "hot reload" (press "r" in the console where you ran "flutter run",
        // or simply save your changes to "hot reload" in a Flutter IDE).
        // Notice that the counter didn't reset back to zero; the application
        // is not restarted.
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page',parts: parts,),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title,this.parts}) : super(key: key);

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;
  final List<String> parts;

  @override
  _MyHomePageState createState() => _MyHomePageState(parts);
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;
  _MyHomePageState(this.parts);
  final List<String> parts;

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }


  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
      appBar: AppBar(
        // Here we take the value from the MyHomePage object that was created by
        // the App.build method, and use it to set our appbar title.
        title: Text(widget.title),
      ),
      body: Center(
        // Center is a layout widget. It takes a single child and positions it
        // in the middle of the parent.
        child:ListView.builder(
            padding: const EdgeInsets.all(8),
            itemCount: parts.length,
            itemBuilder: (BuildContext context, int index) {
              return GestureDetector(
                onTap: (){
                  Navigator.pushNamed(context,parts[index]);
                } ,
                child: Container(
                  height: 50,
//                color: Colors.amber[colorCodes[index]],
                  child: Center(child: Text(parts[index])),
                ),
              );
            }
        )
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );


  }
}
